Question

You want to make sure that a set of servers only accepts traffic for specific network services. You have verified that the servers are only running the necessary services, but you also want to make sure that the servers do not accept packets sent to those services. Which tool should you use

Answer 1

To ensure that a set of servers only accepts traffic for specific network services, you can use a firewall or an Intrusion Detection System (IDS) or Intrusion Prevention System (IPS). These tools allow you to monitor, filter, and control incoming and outgoing network traffic based on predetermined security rules.

Step-by-step explanation:

To ensure that a set of servers only accepts traffic for specific network services, you can use a firewall. A firewall is a network security device that monitors, filters, and controls incoming and outgoing network traffic based on predetermined security rules. By configuring the firewall to allow traffic only for the desired network services and blocking all other packets, you can effectively restrict access to the servers.

Firewalls can be implemented as hardware appliances or software programs. They can be configured to inspect the protocol, port number, and other parameters of network packets to determine whether to permit or deny access. For example, if you only want the servers to accept HTTP traffic, you can create a firewall rule to allow incoming packets with the destination port 80, which is the standard port for HTTP.

Another useful tool for managing and controlling network traffic is an Intrusion Detection System (IDS) or Intrusion Prevention System (IPS). IDS/IPS can monitor network traffic, analyze patterns, and detect suspicious or unauthorized activities. When a potential threat is identified, the IDS/IPS can take action to block that traffic, preventing it from reaching the servers.

Answer 2

Port scanner.

Step-by-step explanation:

A server can be defined as a specialized computer system that provides specific services for its clients on request. An example is a web server.

A web server is a type of computer that run websites and distribute web pages as they requested over the internet by end users (clients). When an end user request for a website by adding or typing the uniform resource locator (URL) on the address bar of a web browser, a request is sent to the internet to view the corresponding web pages (website) associated with that particular address.

In this scenario, the tool you should use is a port scanner because it would scan all packets that are sent or received by the server i.e all packets that are being transmitted to and from the server.